Brian J. Mast Stock Trades

Brian J. Mast Transaction Disclosure Profile | Quantellect Brian J. Mast Transaction Disclosure Profile

Brian J. Mast's disclosures show 99 transactions dating back to 2017, but the pattern that jumps out immediately is how concentrated the activity has been in a handful of speculative names, and how quiet the account has gone since. There were only three disclosed transactions in 2024, all purchases dated March 4, 2024, and all attributed to a dependent child rather than to Mast personally.

Those three 2024 trades were purchases of Amazon.com Inc (AMZN) and two separate purchase disclosures in AT&T Inc. (T), filed under attribution code DC. Under the attribution labels supplied in the transaction record, DC identifies a dependent child rather than the member. The most recent AT&T entries carry unusually small disclosed amounts, $172.00 and $223.60, alongside an AMZN entry disclosed at $350.78, all filed on the same disclosure date of March 26, 2024. These figures read as small, specific dollar amounts rather than the standard bracketed ranges used elsewhere in the filing history, and the packet does not explain the difference in reporting format.

Before that, the disclosed activity tells a very different story. Across 2019 through 2022, the filings attributed to Mast himself (attribution code SELF) show far more active and far more concentrated trading activity, with heavy repeat activity in a small number of names. Tilray Inc (TLRY) accounts for 10 of the disclosed transactions, the most of any security in the record, spanning purchases and sales from 2020 through an April 2022 sale. Aemetis Inc (AMTX), a renewable fuels company, was disclosed six times, entirely within a tight window between March and April 2021, split between purchases and later sales. Nio Inc Class A ADR (NIO) shows five disclosed transactions clustered in 2019 and 2020, and Virgin Galactic Holdings Inc (SPCE) shows four, including two sales on April 18, 2022, that coincided with sales of several other securities.

A Pattern of Repeated, Concentrated Bets

The transaction history shows Mast returning to the same handful of tickers multiple times rather than spreading the disclosed transactions broadly across securities. Beyond TLRY, AMTX, and NIO, the most frequently disclosed securities include Expedia Group Inc. (EXPE), Uber Technologies Inc (UBER), and Virgin Galactic (SPCE), each disclosed four times, and several smaller names disclosed three times apiece, including Personalis Inc (PSNL), a cancer genomics testing company, and two tickers, BGFV and SDC, for which the packet does not supply a company name. By transaction count, sectors classified as Health Care (15 transactions), Industrials (13), and Consumer Discretionary (12) account for the bulk of the disclosed activity where a sector was identified, though a substantial 37 transactions carry no sector classification in the dataset, a reminder that the sector breakdown here is partial rather than exhaustive.

Year over year, the volume of disclosed activity has fallen sharply from its peak. The filings show 37 transactions in 2019, 21 in 2020, and 28 in 2021, the three most active years on record, followed by a drop to just 6 in 2022 and then the three 2024 entries attributed to a dependent child. There were no disclosed transactions at all in 2023 in this dataset. That decline from dozens of transactions a year to a small handful, now filed under different attribution, marks a clear shift in the pattern of disclosed activity even if the packet does not indicate why.

Several records show long gaps between transaction and disclosure dates worth noting for accuracy. A Tilray exchange dated May 3, 2021, carries a disclosure date of October 5, 2022, while an Ideal Power Inc (IPWR) sale dated February 16, 2021, carries a disclosure date of August 12, 2022. Those gaps exceed the general requirement that covered transactions be reported no later than 45 days after the transaction, subject to applicable waivers and exclusions, under the STOCK Act. The packet does not establish why these records carry those disclosure dates, and some raw security names also contain visibly irregular capitalization.

Among the companies most frequently appearing in Mast's disclosures, the businesses span distinct areas of the economy. Tilray Inc is a cannabis and consumer products company operating across cultivation, beverages, and wellness brands in North America and Europe. Aemetis Inc develops renewable natural gas and low-carbon fuel projects through operations that include California and India. Nio Inc designs and manufactures electric vehicles in China and also sells them in Europe and other international markets. Virgin Galactic Holdings is an aerospace and space-travel company focused on developing, manufacturing, and operating spaceships and related technologies. Uber Technologies and Expedia are established consumer-platform businesses in ride-hailing and delivery, and online travel, respectively.

Quantellect does not currently publish a Q Score for Brian J. Mast; no score row exists for this subject as of the latest published scoring date of August 21, 2026. The record instead shows a multi-year transaction-disclosure history spanning 2017 through 2024, including 37 transactions in 2019, 6 in 2022, and the latest three small purchases attributed to a dependent child in 2024.

Disclaimer

This profile is derived solely from data disclosed under the Stop Trading on Congressional Knowledge Act of 2012 and related House financial disclosure requirements, as detailed in the House Committee on Ethics financial disclosure instruction guide. Disclosed transactions may reflect trades made by the member, a spouse, a dependent child, a trust, or a managed account, and attribution follows the codes supplied in the official filings. This content does not constitute investment advice and is limited to periodic transaction reports. The transaction data is drawn from filings published by the U.S. House of Representatives Office of the Clerk.